<template>
<div>
  <!-- 面包屑-->
  <el-breadcrumb separator-class="el-icon-arrow-right">
    <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
    <el-breadcrumb-item>数据统计</el-breadcrumb-item>
    <el-breadcrumb-item>数据报表</el-breadcrumb-item>
  </el-breadcrumb>
  <!--卡片视图区-->
  <el-card>
    <!-- 2. 为Echart 准备一个 容器-->
    <div id="main" style="width: 750px;height:400px;"></div>
  </el-card>
</div>
</template>

<script>
// 1.导入 echarts
import echarts from 'echarts'
import _ from 'lodash'

export default {
  data() {
    return {
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [{
          boundaryGap: false
        }],
        yAxis: [{
          type: 'value'
        }]
      }
    }
  },
  async mounted() {
    // 3. 基于准备好的dom 初始化echarts实例
    var myChart = echarts.init(document.getElementById('main'))

    const {
      data: res
    } = await this.$http.get('reports/type/1')
    if (res.meta.status !== 200) return this.$message.error('获取折线图数据失败')

    console.log(res.data)

    // 4. 准备数据和配置项
    // var option = {
    //   title: {
    //     text: 'ECharts 入门示例'
    //   },
    //   tooltip: {},
    //   legend: {
    //     data: ['销量']
    //   },
    //   xAxis: {
    //     data: ["衬衫", "羊毛衫", "雪纺衫", "裤子", "高跟鞋", "袜子"]
    //   },
    //   yAxis: {},
    //   series: [{
    //     name: '销量',
    //     type: 'bar',
    //     data: [5, 20, 36, 10, 10, 20]
    //   }]
    // }

    const result = _.merge(res.data, this.options)

    // 5. 展示数据
    myChart.setOption(result)
  }
}
</script>

<style>

</style>
